You must take the medicine 3 times a day.(划线提问)划线部分3 times

问题描述:

You must take the medicine 3 times a day.(划线提问)划线部分3 times

How many times must you take the medicine a day?我写这个答案,但错了,you要改成 l 吧,must 要改成什么呢How many times do I must take the medicine a day?